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Adaptive image interpolation based on local gradient features
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DOI：10.1109/LSP.2003.821718.png)
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Abstract
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This letter presents two adaptive interpolation methods based on applying an inverse gradient to conventional bilinear and bicubic interpolation. In simulations, the proposed methods exhibited a better performance than conventional bilinear and bicubic methods; particularly in the edge regions. In addition, the proposed methods can be used irrespective of the magnification factor (MF) and easily implemented due to their simple structure.
Keywords:
image interpolation
image reconstruction
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